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Oxalyl chloride

IUPAC: oxalyl dichloride

C2Cl2O2 Laboratory Reagents CAS 79-37-8
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Quick Reference
Formula / NotationC2Cl2O2
CAS Number79-37-8
Molecular Weight126.92
AppearanceLiquid
Also Known Asoxalyl dichloride; Oxalyl dichloride; 79-37-8; Ethanedioyl dichloride; Oxalic dichloride; Oxaloyl chloride; Oxalic acid dichloride; Oxalic acid chloride; Ethanedioyl chloride; R4Y96317DW
CategoryLaboratory Reagents

What is Oxalyl chloride?

Oxalyl chloride (C2Cl2O2) is a laboratory reagent that appears as Liquid. It has a molecular weight of 126.92 g/mol. Its IUPAC name is oxalyl dichloride.

Formula & Notation

C2Cl2O2

IUPAC Name: oxalyl dichloride

Other Names / Synonyms: oxalyl dichloride; Oxalyl dichloride; 79-37-8; Ethanedioyl dichloride; Oxalic dichloride; Oxaloyl chloride; Oxalic acid dichloride; Oxalic acid chloride; Ethanedioyl chloride; R4Y96317DW

Properties & Characteristics

Appearance: Liquid. Molecular formula: C2Cl2O2. Molecular weight: 126.92 g/mol. Vapor pressure: 150.0 [mmHg]. LogP: 1.7.

Physical Data

PropertyValue
Molecular Weight126.92
AppearanceLiquid

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Oxalyl chloride
Formula C2Cl2O2
CAS Number 79-37-8
Molecular Weight 126.92
Synonyms oxalyl dichloride; Oxalyl dichloride; 79-37-8; Ethanedioyl dichloride; Oxalic dichloride; Oxaloyl chloride; Oxalic acid dichloride; Oxalic acid chloride; Ethanedioyl chloride; R4Y96317DW

Frequently Asked Questions

Oxalyl chloride (C2Cl2O2) is a laboratory reagent that appears as Liquid. It has a molecular weight of 126.92 g/mol. Its IUPAC name is oxalyl dichloride.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.